Limiting mechanism for hangar protective door
By designing a limiting mechanism for hangar protective doors, the precise opening and closing of protective doors is achieved using components such as slide rails and double ear sleeves, the problem of the lack of protective functions of large doors of bunker-type hangars is solved, and the accuracy and protective performance of protective doors are improved.
Patent Information
- Application Number
- CN202420557258.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-21
AI Technical Summary
In the prior art, the large doors of bunker-type hangar lack protection functions, and the construction safety of tunnel-type hangars is low and accidents occur frequently, which cannot meet the complex protection needs of my country's borders.
A limiting mechanism for hangar protective doors is designed, using slide rails, double ear sleeves, connecting rods, articulated seats and bearings to accurately open and close the protective doors through limit switches.
The opening and closing position of the effective limit protective door improves the accuracy of opening and closing the door, enhances the protective performance of the protective door, and meets the needs of large-scale hangar doors with protective functions.
Smart Images
Figure CN222615070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective door accessories, in particular to a limiting mechanism for a hangar protective door. Background Art
[0002] The current tunnel-type protective hangar is limited by problems such as difficult site selection, high cost, and great construction difficulty. In addition, the safety of tunnel excavation is largely affected by a series of factors such as original rock stress, geological conditions and geological structure, and groundwater. These have led to a high accident rate in tunnel construction, causing considerable economic losses, casualties and adverse effects, and cannot cover the complex situation of our country's border lines.
[0003] The bunker-type hangar is less affected by the geographical environment, and the protective performance of its top reinforced concrete structure is no less than that of the tunnel-type hangar. It also has a low cost, which greatly reduces the difficulty of construction. However, the lack of protective function of the bunker-type hangar's door has always been an obvious defect of the bunker-type hangar.
[0004] Based on the above situation, a protective door for a large hangar with a door opening width of 25 meters and a height of 7 meters was born, filling the gap in the domestic large hangar door with protective function used in bunker-type hangars. Utility Model Content
[0005] The purpose of the utility model is to address the defects and shortcomings of the prior art and provide a limiting mechanism for a hangar protective door, which effectively limits the opening and closing positions of a flat-hung protective door and improves the accuracy of opening and closing the door.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a slide rail, the slide rail is fixed on a channel steel seat, the channel steel seat is fixed on a channel steel frame, a double ear sleeve is slidably arranged on the slide rail, a connecting rod is rotatably connected to the double ear sleeve by a cotter pin, the other end of the connecting rod is rotatably connected to a hinge seat by a pin shaft, and the hinge seat is fixed on a wall; limit switches are arranged on both left and right ends of the slide rail.
[0007] Preferably, a bearing is provided inside the slide rail for sliding left and right, and the inner ring of the bearing is rotatably connected to a guide pin shaft, which passes through the double ear sleeves and the slide rail and is fixed by a double-slot pan head screw.
[0008] Preferably, the inner ring of the bearing is connected to the guide pin shaft by means of a copper sleeve.
[0009] Preferably, the bearing is a deep groove ball bearing.
[0010] Preferably, the channel steel frame is fixed to the inner side of the protective door.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a limiting mechanism for a hangar protective door, which effectively limits the opening and closing positions of a flat-hung protective door and improves the accuracy of opening and closing the door. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] Figure 2 yes Figure 1 AA section view.
[0014] Description of reference numerals:
[0015] Slide rail 1, connecting rod 2, hinged seat 3, double ear sleeve 4, channel steel frame 5, channel steel seat 6, double-slot pan head screw 7, guide pin shaft 8, bearing 9, cotter pin 10, copper sleeve 11, wall 12. DETAILED DESCRIPTION
[0016] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the utility model.
[0017] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical solution: it includes a slide rail 1, and the upper side or lower side of the left and right ends of the slide rail 1 is provided with a limit switch (not shown in the figure, the specific installation position depends on the closing requirements of the protective door). The slide rail 1 is welded and fixed on a channel steel seat 6, and the channel steel seat 6 is welded and fixed on three channel steel frames 5. The three channel steel frames 5 are all welded and fixed on the inner side of the protective door. A double ear sleeve 4 is slidably provided on the slide rail 1, and a connecting rod 2 is rotatably connected to the double ear sleeve 4 by a cotter pin 10. The other end of the connecting rod 2 The hinge seat 3 is rotatably connected with the pin shaft, and the hinge seat 3 is fixed on the wall 12; a long strip slide groove is opened in the slide rail 1, and a bearing 9 is arranged in the slide groove for sliding left and right, and the bearing 9 is a deep groove ball bearing. The inner ring of the bearing 9 is rotatably connected to the guide pin shaft 8 by a copper sleeve 11, and the guide pin shaft 8 passes through the double ear sleeve 4 and the slide rail 1, and is fixed by a double-slot pan head screw 7. When the double ear sleeve 4 is driven to slide on the slide rail 1, the cooperation of the guide pin shaft 8 and the bearing 9 provides a guiding effect for the translation of the double ear sleeve 4.
[0018] When the utility model is in use, when the protective door is opened, the protective door body is pushed to drive the connecting rod 2 to rotate around the pin shaft on the hinge seat 3 as the center of the circle. While rotating, the double ear sleeve 4 slides to the right along the slide rail 1 under the guiding action of the guide pin shaft 8. When sliding to the limit switch on the right, the protective door is fully opened; when the protective door is closed, the protective door body is pulled to drive the connecting rod 2 to rotate in the opposite direction around the pin shaft on the hinge seat 3 as the center of the circle. While rotating, the double ear sleeve 4 slides to the left along the slide rail 1 under the guiding action of the guide pin shaft 8. When sliding to the limit switch on the left, the protective door is fully closed.
[0019] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a limiting mechanism for a hangar protective door, which effectively limits the opening and closing positions of a flat-hung protective door and improves the accuracy of opening and closing the door.
[0020] For those skilled in the art, they can modify the technical solutions recorded in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A limit mechanism for a hangar protective door, characterized in that: The invention comprises a slide rail (1), wherein the slide rail (1) is fixed on a channel steel seat (6), the channel steel seat (6) is fixed on a channel steel frame (5), a double ear sleeve (4) is slidably provided on the slide rail (1), a connecting rod (2) is rotatably connected to the double ear sleeve (4) by means of a split pin (10), the other end of the connecting rod (2) is rotatably connected to a hinge seat (3) by means of a pin shaft, and the hinge seat (3) is fixed on a wall (12); limit switches are provided at both left and right ends of the slide rail (1).
2. A limit mechanism for a hangar protective door according to claim 1, characterized in that: A bearing (9) is provided inside the slide rail (1) for sliding left and right, and the inner ring of the bearing (9) is rotatably connected to a guide pin shaft (8). The guide pin shaft (8) passes through the double ear sleeves (4) and the slide rail (1) and is fixed by a double-slot pan head screw (7).
3. The limiting mechanism for a hangar protective door according to claim 2 is characterized in that: The inner ring of the bearing (9) is connected to the guide pin shaft (8) by means of a copper sleeve (11).
4. The position limiting mechanism for a hangar protective door according to claim 2 is characterized in that: The bearing (9) is a deep groove ball bearing.
5. The position limiting mechanism for a hangar protective door according to claim 1, characterized in that: The channel steel frame (5) is fixed to the inner side of the protective door.